Montero V6-3.8L SOHC (2005)
Required Special Tools:
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MB991223: Harness Set
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MB991958: Scan Tool (MUT-III Sub Assembly)
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MB991824: Vehicle Communication Interface (V.C.I.)
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MB991827: MUT-III USB Cable
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MB991911: MUT-III Main Harness B
STEP 1. Check the communication and connection of the service function (M-BUS).
1. Press the adjusting switch with the ignition switch at the "LOCK" (OFF) position. Then while keeping the switch on the pressed condition, turn the
ignition switch to " ACC" position.
2. When the adjusting switch is continuously pressed for more than five seconds, the reception sound (pip sound) is heard and at the same time the
service function is activated to display the service mode screen.
3. Check the communication and connection.
Q: Which of the following M-BUS is indicated?
" E1 " (Communication error) : Go to Step 2.
" E2 " (Open circuit or not connected) : Go to Step 3.
OK: Go to Step 4.
STEP 2. Check the RV meter and A/C-ECU circuit by backprobing.
1. Do not disconnect RV meter connector D-08.
2. ignition switch "ACC" position.
3. Measure the voltage (waveform) between terminal 9 and ground using an oscilloscope by backprobing.
4. Measure the voltage (waveform) between terminal 10 and ground by backprobing.
